Spinning-spindle.



F.' K. NORTH. SPINNING SPINDLE.' APPLICATION FIIEIINov. Ie, Isn.

Patented Jan. 21, 19H).

2 SHEETS-SHEET l.

F. K. NORTH.

SPlNNlNG SPINDLE. APPLICATION min Nov.1e. |917.

A Patented Jan. 21,1919.

2 SHEETS-SHEET 2.

citizen o'f vthe AvUnited .P fo'my Eby reduotio UNITEDSTATES PATENTOFFICE.

Funnix. NORTH, OFW-INCHESTR, "irlxssacHUsETTs, AssmNon To CHAPMANmA-nfmrxcrvma'oourm, 'A CORPORATION or Messacnoserrs To all 'whome't mayconcern:

Be `it `known that lI, Fin-ib NORTH, -a States, residing at Winchester,in the county yof Middlesex `and State of Massachusetts, 4,have`i'nver'ited Enew yin 'Spinning- Spi'ndles, of which the followi'ng is a"specititration. A n

My *irivontion'ire'lates,tof spinriing spindles 'and yhas for "itrfi'ncipail ob 'cts 'powergonf n lof fric lion, jprotectin "of 'yarn `byimprovement in lubrication mothods2 and -.--greater durability byveason'of 'supe'ri of delicate parts. `'Ifiliese objects I accomplish by.providing ba'll beati gs 'embody-ing an improved form of ra'e'wfa'y,combined;

with a bolster mounted adjacent its upper extremity upon the pase bymeans adapted to operate 'as a ",fulerum` a spiral centering springwhich `e1'r`ib`race`s` vthe "tip of the holster .lower extremity andopposes and limits` lotl eral movement 'fot the bolster, 'a grease cupcommunicating with lthe interior of the bolster, and a self.adjustinghelcal spring which bears upon the spindle blade step 'andmaintains a-con'stant and uniform pressure upon both `upperand/,lowermb'earing balls and normally retains the `ball bearingllementsinther proper 'relatomr A `lfurther contribution to the feature ofdarabilit'y re- Sides in the elimination from in'ydevice` of the finethreaded 'stem and, adjusting p'liigin the holster, as Well as allotherthreaded ports, and the extremely delicate bolster spring formerlyemployed;

My invention further resides in the pitrticular` construction andcombination of paris lto be hereinafter more fiilly desorilied andclaimed. y v

Tn the accompanying' drawing in which like numerals ofrc;teren.:@findicato;`corrospondingrv parte in the vs'irious' figuresthereof, Figure 1 isga vertical section of the preferrcd forniV of mynew and improved spindle Fig. 2" is verticalsection of the mjodifiedform ofvvs'am'e"` adapted tooil lubrication",

, and Fig. 3" i's' a detail of my improved ball bearing; l y y yReferring to thiehdra'lwing, the numeral 1' indicates the' spindle'base.y 2` is* the' means by which th'ejbolster tris mounted? on' thehase' and hereinafter referred to' asthe bol ster support, th'ciuppercylindrical section 3 of which' frictionftlly engages the outer or*hearing mountin'gs and"elirn'iixationv 'Bpecincation 'otLe't't'ersPatent.- Patented Jan. 21.. En@ iueimmeuxovcnibcr 1e, um.scria1`no.2o2,`sss.

Aextremity with the cone 12 supported within the holster i u'poirthehalls 6 'which are contained in the ball race? in the step 8. The Step 8is 'slidable within thexbolster and is provided with 'a downwardlyextending Stern 9 Ythe 'lofiver end of which .isreceived within thecentral aperture 10 in the guide 11 `'fitted within the lower endof thebolster.

4 and secured thereto by spinning as shown .or any other 'suitablemeans.- 13 is a. helical self adjusting 4spring which embraces the jafulcrum igpon "which the bolster swings` stem 9, the lliottofmconvolution of which 'guide 11, ihetop Corr spring' restsy 'upon the theshoulder 14 of the 'vol''tion bearing upon step 8 'and exertingthcr'cona yielding pres- Isu're sullicient to maintain the parts of theupper ball hearing 'in the proper relation to each other hereinafterdescribed. The spring 13 further acts as a cushion to absorb shock and'protect the lowerball bearing'as when an operator holding' the bladestrikes the 'Spindlelbase ak sharp blow. jThe guide 11 isalso providedwith a downwardly extendinglr stein y15 ywhich forms the tip' of theholster and which is embraced in Contact by the top convolution" of theconical spiral springr 16 and'protrudes through the central aperture (17in the cap 18 which frictionally engages the outer KAwall of the.spindle base andsupports'thespring 16, the bottom convolution-of whichis in Contact throughout the ,greater-portion of its length with thebase wallA and thus vheld firn'llyy inposition.

wall of the cap and the extremity ot the It is to' -be noted that theupper convolution 'upon the bolster which receives no support.

at any point other than the fulcrum 3. ,The spring* 16 thu'sl hasno"ten`dency to raise kthe holsterv or permit it to he loweredrelatively to' the hase thus moving the. whorl center out of thehorizontal plane 0f the drivinglr hand drum. The diameter of theaperture 1'? in theeap 18 is .substantially greater than that of thestem 15' and thus cooperates with the space between thebolster Wall andhase Wall to permit of lateral movement of the bolster in alldirections. That portion of the aperl ture l() in the guide. 'll whichlies within the stein 15 is interiorly screw threaded tu engage thescrew means of which grease istforced up through the well 21 in the stepSt-o the interior of the bolster to liibrieate the ball bearings uponwhich the. blade 5 is rotated.

The upper bearing in which the blade 5 rotates consists ojt the cone 23pressed on the. blade. the balls Z-l. and raceway :'22 in ball. cup Theform oi ball race and cone which I employ is an important. ieature of myinif'ention. In general practice the diving pulleys on a spinning frameare mounted on a horizontal shaft. and rotaie. in a vertical plane,wherais the spindle. whirl rotates in'a horizontal plane. producing aquarter turn in the driving band whichexerts an upward or downward pnlion the blade, depending on the direction of move-A nient of the band.Preferably lor the. purpose of offsetting the. 'toreo of gravit)vv aquart...` turn which will impart an upward pull is adopted. Owing totheI fact tha-t the weight of the blade and other moving parts which itcarries is substantially otl'set b v the upward pull of the. drivingband and the only vertical stress on the bearings is that which resultsfrom the pressure of the.l

self adjusting spring.` appro.\imately five pounds. while the lateralpull ot the; driving band ranges up to eight pounds. the greater stressupon the bearing isobviously in a horizontal plane, and theresultant-,ot the two unequal toiics.ve1tical and horizontal., actingupon the bearing atan angle of fitr degrees is noty l degrees, butapproximately Qt) degrees to the. horizontal. B v shaping the curve ofthe .race and cone so that ball diai'neters intersecting the centralpoints ot' Contact between the race and ball and cone and ball shallwith a horizontal plane. inv

elude an angle. of' approximately 2t) degrees. i obtain the radialthrust through the re:L

sultant line kot force adapted to enable. the

bearing most vetlicientlv to perform the re-- quired lworh at the pointsotseverest applica'tion. Vihc degree of the. proper-angle depends uponthe variance between the hori zontal and vertical' stress: the .more thciormer exceeds the latter. the less the angle. lor practical purposeshowever the 2t) degree angle. will prove. highly .ellicicnt underConditionsiisuallv prevailing. and a bearing constructed as hereinbcforcdescribed may.

be coiiiineiiciallv operated with a. minimum of friction. Owing to thei'act that the pull ot the driving band is applied to the. blade abovethe upper bearing. alever Vfulcruined` on thatbearing is est ablishcd.and as the disytance from the upper iiiearing to the point is lesstliaintliatv vrfrom the upper bea-ring to the lower. the horriontalstress on thelower hearing is less of applicationuoi liower threadedplug 20, by'

4and the forni ot the bearingfrelatively uniniportant as compared withthat ot' the upper bearing' which sustains the greater burden.

The principle ot' construction however remains the saine. and itv isdesirable that. it.

-be applied in order to reduce the. friction to Z3-'t and adapted'tolimit upward movement ot the whirl base 2o by contact with' theflange 3Gisa nut adapted tolengage the screw threaded section 3T of thel baseand` tirmly secure the latter to thespindle rail of thespinniilganachine 't' aine. i

l have found b v experience that grease is on theV wholel the mostsatisfactory lubricant. forl hall bearings. and its application to thisartis peculiarly advantageous inv that damage to the varii b vspattering ot'oil resides in the-economy .resulting tronrdi- .95

minished consuinl'ition ot lubricant and time land labor ordinarilyrequired in -replenishvantage ai'ising'ironi the other-,novelteaturesot" my invention. Referring to Fig. 2 105 ity will. beobservedthat the. only substantial structural ditl'ercnces between ythe twotypes reside in the oil inlet 3S in the dotl'ervguard support 3i!leading to the oil reservoir 35).', whence Atheoill flows into tht` baseand up throughsthe well 2l into the bolster and is carried to the upper.bearing b v centrifugal force as the spindle blade-isl rotated. theshortening `oi` the stein 15. and omission oi' the gre/ase cup` and theopening inA the cap'ltl. 1 My. improved ball bearings.cooperating withsell' adjusting spring and grease. liihrieating s vstcin to permit highspeed rotation n with a minimum of friction. centering spring actingupon thct-ip of bolster combined with ffulcrinn support. at top ofbolstei-.to permit.

duce a spindle of the' highest`,etli -ieiiey and 13:0

durability, which will spin a yarn of even twist, devoid of oil spotswhich result in im-` The base 1s' plugged and dipped and the doiferguard 33 mounted on the support32 and the pin 34 staked. The vspiralspring 16 through a small ,hole in the cup. rThe bolster 1s then placedin the cap 18 and the latter pressed on to the lower end of the baseatten which the bolster support 2 is pressed into the top of base.Fourteen balls are placed in the upper cup and the blade inserted visthen placed over the cup 25 and the whole placed in an arbor press witha lar e part of the press coming down and gripping the large end ofbolster forcing it into thedie .which forms the end over the cup. Thebolster and blade are then removed from the j press and reversed. Fiveballs are placed in l "the race 7 in the step 8 and the latter assembledwith spring 13 and guide 11 and inserted in the lower endof bolsterwhich is then placed in a spinning machine for spinning-the bolster intoa. V-shaped recess inthe guide. The whirl and whirl base are then forced-on to the upper end of blade in an arbor press. The assembly iscompleted by inserting the bolster in the support 2 in the base with thestem 15 of the guide 11 engaging the spring 16 which has already beeninserted as above described.

What I claim and desire to secure by Letters Patent isz' 1. In aspinning spindle, a base and a bolster mounted thereon by means adaptedto prevent longitudinal movement of the bolster relative to the base,combined with a blade step vertically movable withinl the bolster andyieldingly supported therein.

2. In a spinningispindle, the combination of abase, a bolstersupporte-'d at a point adjacent its upper extremity/1 by the base andadapted to move laterally in all directions upon said point as ffl"fulcrum, a spring mounted on the basemlapted to act upon the lowerextremity of the bolster' and oppose lateral movement of the bolsterwith relation to the base, a step vertically movab-le within saidbolster, a spindle blade mounted in bearings on said step, and a spring`adapted to bear upwardly on said step.

3. In a spinning spindle, the combination of a base, a bolster supportedat a point adjacent its upper extremity b'y the base and adapted to movelaterally in'all directions upon said point as a fulcrum, a springmounted on the base adapted to act upon the lower extremity'ot' vthebolster and oppose lateral movement of the bolster with -relation totherbase, a step provided with a vertical aperture within said bolster,a plug adapted to force grease through said aperture to the linterior ofthe bolster, and a spindle blade mounted in bearings on said step. A

, 4. In a spinning spindle, the combination of 'a base, a. bolstersupported at a point `adjacent its upper extremity by the base andadapted' to move laterally in all directions upon said point as mountedon the base adapted to act upon the lower extremity of the bolster andoppose lateral movement of the bolster with relation to the.base,`aspindle blade mounted in ball a fulcrum, a spring bear-inns on a stepvertically movable within the bolster,said step being provided with avertical aperture and a stem which extends 'downwardly' within a guidesecured to the bolster, an exteriorly threaded plug adapted to engagethe screw threaded interior of the guide and force grease through saidaperture to the interior of the bolster, and a coil Ispring embracingsaid stem mounted onthe guide and adapted to bear upwardly on said step.l

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses, this twelfth day of November,

